package com.example.znbk.znbklibrary.util;

import android.content.Context;
import android.util.TypedValue;


/**

 * Created by XiaoJianjun on 2016/9/1.

 * 像素转换工具类.

 */

public class DensityUtils {

    /**

     * dp转px

     *

     * @param context

     * @param dpVal

     * @return

     */

    public static int dp2px(Context context, float dpVal) {

        return (int) TypedValue.applyDimension(TypedValue.COMPLEX_UNIT_DIP, dpVal,

                context.getResources().getDisplayMetrics());

    }



    /**

     * sp转px

     *

     * @param context

     * @param spVal

     * @return

     */

    public static int sp2px(Context context, float spVal) {

        return (int) TypedValue.applyDimension(TypedValue.COMPLEX_UNIT_SP, spVal,

                context.getResources().getDisplayMetrics());

    }



    /**

     * px转dp

     *

     * @param context

     * @param pxVal

     * @return

     */

    public static float px2dp(Context context, float pxVal) {

        final float scale = context.getResources().getDisplayMetrics().density;

        return (pxVal / scale);

    }



    /**

     * px转sp

     *

     * @param pxVal

     * @param pxVal

     * @return

     */

    public static float px2sp(Context context, float pxVal) {

        return (pxVal / context.getResources().getDisplayMetrics().scaledDensity);

    }

}
